

import java.io.File;
import java.io.IOException;
import java.util.ArrayList;
import java.util.Scanner;

import javax.servlet.RequestDispatcher;
import javax.servlet.ServletException;
import javax.servlet.annotation.WebServlet;
import javax.servlet.http.HttpServlet;
import javax.servlet.http.HttpServletRequest;
import javax.servlet.http.HttpServletResponse;
import javax.servlet.http.HttpSession;

/**
 * Servlet implementation class FriendsList
 */
@WebServlet("/FriendsList")
public class FriendsList extends HttpServlet {
	private static final long serialVersionUID = 1L;
       
    /**
     * @see HttpServlet#HttpServlet()
     */
    public FriendsList() {
        super();
        // TODO Auto-generated constructor stub
    }

	/**
	 * @see HttpServlet#doGet(HttpServletRequest request, HttpServletResponse response)
	 */
	protected void doGet(HttpServletRequest request, HttpServletResponse response) throws ServletException, IOException {
		// TODO Auto-generated method stub
	}

	/**
	 * @see HttpServlet#doPost(HttpServletRequest request, HttpServletResponse response)
	 */
	protected void doPost(HttpServletRequest request, HttpServletResponse response) throws ServletException, IOException {
		String loginEmail = (String)request.getSession().getAttribute("loginEmail");
		String path = "C:/SVN/WebContent/Members/"+loginEmail+"/friends.txt";
		Scanner s = new Scanner(new File(path));
		ArrayList<String> friendsList = new ArrayList<String>();
		
	try
	{
		if (!s.hasNext()){
			friendsList=null;
		}
		else {
		while (s.hasNext()){
		    friendsList.add(s.next());
		}
		s.close();}}
	catch(NullPointerException e){
		friendsList=null;
	}
		HttpSession session = request.getSession(true);
		session.setAttribute("friendsList", friendsList);
		System.out.println(friendsList);
		RequestDispatcher rd;
		rd= request.getRequestDispatcher("FriendsList.jsp");
		rd.forward(request,response);
		}
	}


